Motorola nextel ic402 用户手册

battery charge is getting too low, the phone makes a sound 
and displays a message.

Always use a Nextel-approved or Motorola-approved charger, 
or vehicle power adapter to charge your battery.

Plug the charger into an electrical outlet.

Pull and rotate the connector cover.

Plug the other end of the charger into the accessory 
connector.

Your display screen lets you know the battery is charging. 
Both the battery icon 

 and a text message show the 

charging status.